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Slope stability is affected by many factors, their effects on the slope stability may be bigger or smaller.
Along with continuous improvement of the various calculation methods, it is more important to identify the main influencing ratio factors in the process of analyzing the slope stability than to select the method of calculation .Therefore the paper analyzed the main internal factors, calculated to get five curves that showed the relationship between these influence factors and the safety factor, The results show that unit weight of soil, cohesion and internal friction angle are the main factors affecting slope stability.
Introduction Slope is the natural or artificial slope, human engineering activities in the most basic geological environment, but also the construction of the most common form of project. slope slide seriously endangering the safety of state property and people. [1] There are many factors that affect the slope stability.
According to the different systems of slope internal and external influence factors, they can be divided into two categories: one is the slope of the material composition, physical and mechanical indexes, the topography, rock mineral composition, soil and rocks geological structure surface and slope shape that can be called the internal cause.
References [1] Yuluan Li, Slope deformation and its influence factors analysis [J].

The calculation results show that the damage evolution of the weld metal is affected strongly by the welding mechanical heterogeneity.
The effects of the mechanical properties of the base metal on the damage evolution of the weld metal decreases with the increase of the weld metal width.
Comprehensively considering the varies of the four factors, i.e. the yielding stress, strain hardening exponent, rupture strain, and weld metal width, the effects of welding mechanical heterogeneity on the damage evolution of the weld metal can be investigated in some degree.
For the other reason such as avoiding the cold cracking in the welding affected zone (HAZ), the under-matched welded joint can be used, in which the good property of weld metal with enough ductility must be satisfied.
The conclusions are shown as the following. 1) The damage evolution of the weld metal is affected markedly by the properties of the base metal near the weld metal.

The effect of some factors(dosage and grain size of recycled fine aggregate of construction waste, content of mineral admixture) on the properties of cement mortar was studied.
After crushing, RFA has some defects, such as high porosity, high water absorption, large crushing index[2].The mechanical properties of cement mortar specimens prepared by RFA is poor.
Ma Yiping[4]pointed out that the mechanical properties and durability of concrete mainly depended on the combination of aggregate-cement in ITZ.
The influence of some factors(dosage and grain size of RFA of construction waste, content of mineral admixture) on the combination property of ITZ and mechanical property in cement mortar was studied.
A B C Optimal combination 1 6.53 6.64 6.63 A2B2C3 2 7.19 7.31 6.67 3 6.45 6.46 7.02 range 0.74 0.85 0.39 Effect of different factors on compressive properties of samples Range result of 28d compressive strength is shown in Table 7.

Elastic Properties of Microwave Sintered Hydroxyapatite F.A.
Under the set of controlled parameters investigated, green density was the most significant factor affecting E.
Factors Level 1 Level 2 A.
Properties of the starting powder.
The Taguchi DOE method showed that, for the selected control factors, the green density is the significant factor most affecting the Young's modulus.

The choice of welding electrode coatings for SMAW depends on a number of factors, including the weld material, welding position and the desired weld properties.
The comparative evaluation is made on the basis of hot cracking tests; estimation of mechanical properties and coefficient of thermal expansion.
The task is more complex than that of the welding of similar materials due to differences in the physical, chemical and mechanical properties of the base metals.
All these factors must be taken care of during welding of bimetallic joints.
The higher hydrogen content of deposited weld metal for E-3 electrode reveals the poor mechanical properties as compared to E-1 and E-2 electrode coatings.

The inclusion of fibres to the mix decrease its flow but increases its mechanical properties.
The curing of the material influences its physical and mechanical properties significantly.
The compressive strength of FC is influenced by various factors, such as density, cement content, water-cement ratio, type, properties and amount of aggregates to be used and curing conditions among others [1].
The properties of the paste or mortar influence only this coefficient, while they do not affect on b [71].
Affecting these relationships by a reduction factor ηE, determined with 20, the elastic modulus of lightweight concrete is obtained, as shown in Eq. 21.

Research on Mechanical Properties and sectional form of CGS Mingquan Sun1, a Shifeng Yang2, b 1 North China University of Water Conservancy and Electric Power,Zhengzhou,Henan,450011,China asunmingquan@ncwu.edu.cn, byangshifeng@ncwu.edu.cn Keywords：CSG; mechanical properties; sectional form; design theory Abstract: CSG is a kind of new dam type between earth- rockfill dam and concrete gravity dam.
It proved to be feasible under massive experiment about the mechanical properties of CGS.
To ensure the safety and economy to meet the construction requirements, it is required to solve the following main issues: (1) Know in detail the physical and mechanical properties of CSG To study the safety evaluation method of CSG, learning more about the physical and mechanical properties of CSG is principal.
Therefore, the major factors which influence the physical and mechanical properties should be selected to test.
Test and Study on Mechanical Property of Super-Short Cement Concrete [J].

Other than strain rate and temperature, humidity is also one of the factors that affect the ductile properties of PMMA.
The output from the experimental works proved that the tensile properties of RT-PMMA are affected by the presence of humidity for all three grades of PMMA under consideration.
Moisture and humidity are known to affect a range of polymer properties, such as processability, dimensional stability, mechanical, acoustic, electrical, optical, and chemical properties, and ultimately the performance of products[8].
For PMMA specimen, the relative humidity does not have significant effect to its mechanical properties since the observation time is very short as it is too brittle.
Velickovic, The Mechanical Properties of a Poly(methyl methacrylate) Denture Base Material Modified with Dimethyl Itaconate and Di-n-butyl Itaconate, Int.

Overaging temperature affects the mechanical properties of ultra-high strength multiphase steel due to microstructural evolution.
The purpose is to contribute to a better understanding of the factors governing the change in mechanical properties with overaging temperatures for HBDP steel.
The mechanical properties of the specimens were determined by tensile testing on an INSTRON 4206 machine.
Mechanical Properties after different Overaging Temperatures.
The mechanical properties were strongly affected by overaging temperatures.

The effects of different content and medium particle size of FA on mortar`s electrical resistivity, chloride penetration and mechanical properties are investigated.
The factors of damage are diverse.
However, in the final analysis, harmful substances in the environment penetrate into the concrete, affecting the normal use and the durability of the concrete [1-3].
The chemical composition and basic physical properties of Portland cement and FA are shown in Table 1.
Effect of fly ash on frost-resistance and chloride ions diffusion properties of marine concrete."